setzer



(No Model.)

. G. A. SETZER. WATER COIL BOILER.-

No. 444,399. Patented Jan. 6, 1891.

TITNESSES: 9 Y N ayw md BY 1M ATTORNEY.

UNITED STATES PATENT OFFICE.

GUSTAV A. SETZER, OF BALTIMORE, MARYLAND, ASSIGNOR TO MARY O. SETZER, OF SAME PLACE.

WATER-COIL BOILER.

SPECIFICATION forming part of Letters Patent No. 444,399, dated January 6, 1891.

Application filed August 21, 1890. Serial No. 362,593, (No model.)

To all whom it may concern.-

Be it known that I, GUSTAV A. SETZER, a citizen of the United States, residing at Baltimore,in the State of Maryland, have invented certain new and useful Improvements in \Vater-Ooil Boilers, of which the following is a specification.

This invention relates to a portable apparatus for heating Water and making steam, with means for controlling the action of the same. The apparatus is designed for flushing, cleaning, and cooling the pipes of beverage-drawing apparatus, such as beer-pipes, also for steaming oysters and providing steam for steam baths, steamingmilk-cans, and other purposes.

The invention is shown in the accompanying drawings, in which- Figure 1 is a vertical section of the apparatus. Fig. 2 is a horizontal section of the same. Fig.3 is a view of the top plate of the burner. Fig. 4 is a section of the valve for The shape or size of the case is immaterial.

I use a horizontal coil-pipe C in which to heat the water and generate steam. This heating-coil comprises a series of straight lengths or sections d, united by return-bends 6. By having the coils d e placed in a horizontal plane and providing a burner from which a series of flame-jets Will issue, said jets being also in a horizontal plane and directly under the coils, the latter will be thoroughly heated. The valve F controls the sup-- ply of water to the heater. The burner has a broad top plate G, provided with rim-apertures h and a central row of apertures i. Attached to the lower side of the burner is a globular case j, having side holes It) for the inlet of air and a bottomconnection Zfor gas. The gas passes into the chamber of the case j, where it mixes with air, and the mixture of gas and air passes to the apertures h. Each of these apertures produces a jet-flame of the blue or Bunsen character. The valve F has a small spray-aperture on direct through it, which is controlled by a valve-point n. The needle-valve maybe opened to allow a small stream or spray of Water to pass to the pipes of the heater 0 for the purpose of rapidly generating steam. The end of the pipe designated o is the water inlet or supply, and the end designated 19 is the steam-outlet. A bypass or shunt pipe (1 connects with the inletpipe 0 outside of the valve F and enters the case A at a higher point than the heater C and passes out of the case at q and connects with the outlet-pipe p at a point outside of the cut-0E valve r. This by-pass pipe has a cut-off valve 8 near its junction with the outlet-pipe. A drain-nozzle t is provided having a cock t.

The operation of this device will be readily understood. After using the heater-pipe C to supply either steam or hot water for any purpose desired, it such purpose be for cleaning beer-pipes, the next step will be to cool the said beer-pipes. This may be done by closing the valve F and the cut-off valve 0* and opening the cut-off valve 5 in the by-pass pipe, whereupon the cold Water will flow through the by-pass pipe q into the beer-pipes without passing through the coil 0, and thereby avoid chilling the-pipes composing the coil 0. By this arrangement the heater-coil of the apparatus is kept hot and in readiness to at once cleanse another set of beer-pipes.

I may vary the construction of some of the parts here shown.

Ordinarily city-manufactured gas may be used to supply the burner, or it may be supplied by gas from gasoline.

Having described my invention, I claim- A portable apparatus for heating Water, having in combination a case A, a series of sections (1 of heating-pipes united by return bends and placed side by side in a horizontal plane, and having an inlet 0, controlled by a valve F, which is provided with a spray-aperture m to cause a spray of water to pass into the heating-pipes, an outlet 17, provided with a cut-off valve 0', a burner below the said heating-pipes, a shunt-pipe q, connecting with the said inlet at a point outside of the valve F and with the outlet 19 at a point outside of the cut-off valve '1", and a cut-off valve sin said shunt-pipe, all arranged for the purpose specified.

In testimony whereof I affix my signature in the presence of two Witnesses.

GUSTAV A. SETZER. Witnesses:

A. O. BABENDEEIEE, JNo. T. MADDOX. 

